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authorYijing Wang <wangyijing@huawei.com>2013-09-05 15:55:26 +0800
committerBjorn Helgaas <bhelgaas@google.com>2013-09-23 17:30:03 -0600
commitad4d35f865408a494f0a4c02b1c7ebd3f80f5dbf (patch)
tree3fc6033c5ea9a39a385505101580f4b12742460b /drivers
parentc0102c00d8c9f4109509d9d68631a1ad47703b5f (diff)
downloadblackbird-op-linux-ad4d35f865408a494f0a4c02b1c7ebd3f80f5dbf.tar.gz
blackbird-op-linux-ad4d35f865408a494f0a4c02b1c7ebd3f80f5dbf.zip
[SCSI] csiostor: Use pcie_capability_clear_and_set_word() to simplify code
pci_is_pcie() and pcie_capability_clear_and_set_word() make it trivial to set the PCIe Completion Timeout, so just fold the csio_set_pcie_completion_timeout() function into its caller. [bhelgaas: changelog, fold csio_set_pcie_completion_timeout() into caller] Signed-off-by: Yijing Wang <wangyijing@huawei.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Cc: Jiang Liu <jiang.liu@huawei.com> Cc: "James E.J. Bottomley" <JBottomley@parallels.com> Cc: Naresh Kumar Inna <naresh@chelsio.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jesper Juhl <jj@chaosbits.net>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/scsi/csiostor/csio_hw.c22
1 files changed, 4 insertions, 18 deletions
diff --git a/drivers/scsi/csiostor/csio_hw.c b/drivers/scsi/csiostor/csio_hw.c
index 0eb35b9b3784..0eaec4748957 100644
--- a/drivers/scsi/csiostor/csio_hw.c
+++ b/drivers/scsi/csiostor/csio_hw.c
@@ -852,22 +852,6 @@ csio_hw_get_flash_params(struct csio_hw *hw)
return 0;
}
-static void
-csio_set_pcie_completion_timeout(struct csio_hw *hw, u8 range)
-{
- uint16_t val;
- int pcie_cap;
-
- if (!csio_pci_capability(hw->pdev, PCI_CAP_ID_EXP, &pcie_cap)) {
- pci_read_config_word(hw->pdev,
- pcie_cap + PCI_EXP_DEVCTL2, &val);
- val &= 0xfff0;
- val |= range ;
- pci_write_config_word(hw->pdev,
- pcie_cap + PCI_EXP_DEVCTL2, val);
- }
-}
-
/*****************************************************************************/
/* HW State machine assists */
/*****************************************************************************/
@@ -2069,8 +2053,10 @@ csio_hw_configure(struct csio_hw *hw)
goto out;
}
- /* Set pci completion timeout value to 4 seconds. */
- csio_set_pcie_completion_timeout(hw, 0xd);
+ /* Set PCIe completion timeout to 4 seconds */
+ if (pci_is_pcie(hw->pdev))
+ pcie_capability_clear_and_set_word(hw->pdev, PCI_EXP_DEVCTL2,
+ PCI_EXP_DEVCTL2_COMP_TIMEOUT, 0xd);
hw->chip_ops->chip_set_mem_win(hw, MEMWIN_CSIOSTOR);
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